feat: add copy and paste action

Author: BlueGreenMagick

addon/config.md

@@ -62,3 +62,5 @@ When shortcut has multiple `press\_button`s, the buttons must be in the same ord
 - `record_voice`
 - `replay_voice`
 - `toggle_auto_advance`
+- `copy`
+- `paste`

addon/event.py

@@ -118,6 +118,8 @@ def toggle_auto_advance() -> None:
     "record_voice": lambda: mw.reviewer.onRecordVoice(),
     "replay_voice": lambda: mw.reviewer.onReplayRecorded(),
     "toggle_auto_advance": toggle_auto_advance,
+    "copy": lambda: mw.reviewer.web.triggerPageAction(QWebEnginePage.WebAction.Copy),
+    "paste": lambda: mw.reviewer.web.triggerPageAction(QWebEnginePage.WebAction.Paste),
 }
 ACTION_OPTS = list(ACTIONS.keys())